baber/WOPTO huggingface dataset:
Patent CA-2015326-A1 (CA)
Title: Electrically insulated breast lesion localization device
Inventor: HOUGHTON FREDERICK C
IPC: A61B19/00
Filed: 1990-04-24
Abstract: ELECTRICALLY INSULATED BREAST LESION        LOCALIZATION DEVICE                      ABSTRACT      An electrically insulated breast lesion locali-zing device  includes  a cannula having  a  proximal end,  a  distal  end  and a  lumen therethrough.  An elongate  metallic  localizer  having   a  proximal portion,  a  distal portion and a resilient  anchor portion at the distal portion.   The  localizer  is movably  positioned within  the  lumen  so  that  the proximal portion of the localizer extends outwardly from the proximal end of the cannula.  The resilient anchor  portion  is  deflected  by  contact  with  the lumen  so  that moving the cannula proximally with respect to he localizer causes the anchor portion to project outwardly from the distal end of the cannula and to spring to a size larger than the distance across  the  lumen.   A  coating  is provided on the distal  portion  of  the  localizer  for  helping  to insulate  the  localizer  from the effects  of elec-trical current from electrosurgical knives.
Patent CA-2015693-A1 (CA)
Title: Molded shower installation kit
Inventor: LAMPRON SERGE
IPC: E04F19/02
Filed: 1990-04-30
Abstract: ABSTRACT      In this invention, we have created a set of two P.V.C. clips to attach together a dry-wall and a molded shower unit that eliminates almost every shortcomings (such as humidity , moisture and desagragation of dry-wall) occuring usually with the current use of silicone.  Our clips system is much more durable than silicone, is easier to clean and adds a nice professionnal finishing look;  in short, it will not break, crack, mildew, color change or leak like alternatives presently used by contractors.
Patent CA-2016489-A1 (CA)
Title: Process and an apparatus for pasteurizing and precooking uncooked pizza bases
Inventor: LE VIET TOAI
IPC: A23L5/10
Filed: 1990-05-10
Abstract: Abstract A Process and an apparatus  for pasteurizing and precook-ing uncooked pizza bases A vitroceramic plate is heated by microwaves to bring it to a temperature of 250 to 300°C, the plate is then re-moved from the microwave field and the pizza base is placed on the plate for about 2 to 3 minutes.   The arrangement comprises a conveyor belt (1) with a plurality of vitro-ceramic plates  (2)  and with a zone in which it passes through a microwave tunnel  (4)  and a zone in which it passes through open air.                                  Fig.
Patent CA-2016731-A1 (CA)
Title: Hydrazide derivatives
Inventor: DRABEK JOZEF
IPC: C07C323/62
Filed: 1990-05-14
Abstract: Hydrazide derivatives Abstract Novel triacylhydrazides of formula I                          (I) wherein Ar1 and Ar2 each independently of the other is phenyl or naphthyl, or phenyl or naphthyl each independendy of the other substituted by from 1 to 5 radicals from the group comprising halogen, nitro, cyano, C1-C6alkyl, C1-C6haloalkyl, C1-C6alkoxy,C1-C6haloalkoxy, C1-C6alkoxyalkyl, C1-C6alkylthio, C1-C6alkylsulfinyl, C1-C6alkyl-sulfonyl, hydroxy, carboxy, C1-C6alkylcarbonyl, C1-C6alkoxycarbonyl, methylenedioxy, difluoromethylenedioxy, phenyl, phenoxy, pyridyloxy, phenylthio, thienyl, anilido, benzoyl, phenylsulfinyl, phenylsulfonyl, sulfonamido, C2-C6alkenyl, C2-C6alkynyl, C3-C8cycloalkyl and benzyl; R is C1-C10alkyl, C1-C10alkyl subsdtuted by a radical from the group comprising phenyl, C3-C8cycloalkyl, trifluoromethyl, halogen or 1 or 2 cyano radicals, or is C2-C10alkenyl, C3-C10alkynyl, C3-C8cycloalkyl, benzyl or phenyl; and R1 is C1-C10alkyl, C1-C10alkyl substituted by a radical from the group comprising halogen, cyano, nitro, C1-C4alkoxy, C1-C4alkylcarbonyl, C1-C4alkoxycarbonyl, phenyl and C3-C8cycloalkyl, or is C3-C8cycloalkyl or phenyl.   These triacylhydrazides have valuable insecticidal and acaricidal properties and can be used for controlling pests.
Patent CA-2018961-A1 (CA)
Title: Chair and table combination
Inventor: ITALIANO ANTONIO
IPC: A47C7/62
Filed: 1990-06-13
Abstract: ABSTRACT          The present invention relates to a chair and table combination comprising a seat raised above the ground on legs, a support disposed upwardly from the seat, a panel pivotally connected to the support, and a tilting mechanism connecting the panel to the support and adjustable between a first mode in which the panel serves as a back rest for the seat and a second mode in which the panel serves as a working surface.
Patent CA-2019339-A1 (CA)
Inventor: TSUKAGOSHI MASAHIKO
IPC: H04N5/44
Filed: 1990-06-20
Abstract: A channel selecting apparatus for television receivers and the like wherein, in case data showing a predetermined channel are housed in a memory (RAM of a channel selecting microcomputer), a first channel selection instructing means will give a tuner a channel selection controlling signal based on these data but, in case the data showing the predetermined channel are not housed in the memory, a second channel selection instructing means will sequentially give channel selection controlling signals for receiving respective channels and, when a judging signal showing that a broadcast signal is included in a receiving channel is input from a judging circuit, that channel will be received.
Patent CA-2023026-A1 (CA)
Title: Pyridazinones having cardiotonic and beta blocking activity
Inventor: WHEELER THOMAS N
IPC: A61P9/00
Filed: 1990-08-09
Abstract: Abstract Pyridazinones of the following formula (I):                                                        (I) where R1-R4 are a variety of substituents and L is a linking group, a pharmaceutical composition for treating congestive heart failure, novel intermediates, methods for such treatment and processes for preparing compounds of formula (I).
Patent CA-2023626-A1 (CA)
Title: Contact lens for compensating eye dominance crossover
Inventor: STEPNIEWSKI RICHARD J
IPC: G02C7/04
Filed: 1990-08-20
Abstract: Abstract of the Disclosure A contact lens has a central circular region treated to make it translucent.  The diameter of the translucent region is at least great enough to cover the pupil of the eye.   Light passes through the central region of the lens but the image normally seen is  blurred  sufficiently  so  that  it  cannot  be visualized.  The lens is deposited on the pupil of the eye which is normally dominant for those who have eye dominance crossover such that where critical viewing along the sights of a gun or optical instrument, for example, must be performed by the other eye, visual dominance is transferred to said other eye.
Patent CA-2024817-A1 (CA)
Inventor: ST LOUIS DANIEL M
IPC: F28G1/16
Filed: 1990-09-07
Abstract: An articulated lance for cleaning sludge located between steam generator tubes is disclosed. A plurality of radius blocks are attached to the end of a manipulator member and are actuatable by a cam assembly to form an arc permitting the lance to be received between adjacent tubes within a tube bundle, A plurality of fluid passageways interconnect a fluid inlet on the manipulator member with one or more outlet orifices adjacent the end of the lance, The outlet orifices are positioned outwardly with respect to the end of the manipulator member so that fluid passing therethrough can be directed to impinge upon sludge surrounding the tubes. A spring backing plate biases the radius blocks and the manipulator member back into the same plane upon deactuation of the cam assembly.
Patent CA-2031754-A1 (CA)
Title: Reusable and microwavable hot insulated compress and method of manufacture
Inventor: WALASEK STEVEN P
IPC: F25D3/08
Filed: 1990-12-07
Abstract: A reusable and microwavable hot insulated compress has a bottom laminate, a first pocket containing a gel, a middle laminate being positioned above the first pocket and including a top layer of insulative material, a second pocket being provided with a dead air space as additional insulation above the insulative material, and a top laminate being positioned above the second pocket. The bottom, middle and top laminates each have outer peripheral edges that are bonded together by a radio frequency (RF) heat-sealing step. A method is also disclosed for manufacturing the compress.
Patent CA-2033879-A1 (CA)
Inventor: GILSON WARREN E
IPC: B01F15/04
Filed: 1991-01-09
Abstract: A continuously adjustable liquid mixing device for intermixing selectively adjustable volumes of several liquids comprises a body for holding a plurality of volumes of liquids including a recess at an upper end.  A mechanism is provided for drawing up the volumes of liquid into the body and thereafter expelling the same from a lower end.  A volume adjust-ing selecting mechanism is provided for at least one of the volumes including a rotary element mounted in the recess and frictionally engaging a wall surface thereof for retaining a selected volume that is de-sired.  A rotary drive system is provided for rotating the volume adjustment mechanism and is readily acces-sible externally of the body for convenient manipula-tion to select a desired volume.  The drive system is movable between an outer operating position for easy manipulation and a retracted position when not in use.
Patent CA-2033956-A1 (CA)
Title: Process for the preparation of beta-substituted sulphonic acids and/or sulphonates
Inventor: STAPERSMA JOHAN
IPC: C07C303/02
Filed: 1991-01-10
Abstract: A B S T R A C T            PROCESS FOR THE PREPARATION OF BETA-SUBSTITUTED      SULPHONIC ACIDS AND/OR SULPHONATES      The invention relates to a process for the preparation of beta-substituted sulphonic acids and/or sulphonates which comprises reacting a beta-sultone of an internal olefin having the chemical formula   , wherein each of the groups R1, R2, R3 and R4 independently are linear or branched alkyl groups or hydrogen and the total number of carbon atoms of R1, R2, R3 and R4 is from 6 to 24, and at least one of R1 and R2 and one of R3 and R4 is an alkyl group, with a nucleophile, with the proviso that the nucleophile is not H20 or hydroxide ion.
Patent CA-2041146-A1 (CA)
Title: Methods and apparatus for optimizing track seeking operations
Inventor: BERNETT FRANK
IPC: G11B21/08
Filed: 1991-04-24
Abstract: ABSTRACT OF THE INVENTION           A method and apparatus for providing a dynamic fine track seeking operation that adaptively fine tunes the entrance criteria for the specific disc drive under actual operating conditions.  The method and apparatus includes adaptively modifying entrance criteria individually for each head in a disc drive according to actual operating conditions with the use of stored entrance criteria for each head, an extra track proximity threshold and a successful entrance counter.     means for decreasing said entrance period when said head does not deviate beyond said secondary proximity threshold for a selected number of consecutive on track declarations.
Patent CA-2041197-A1 (CA)
Title: Inking system
Inventor: SCHROEDER VOLKER
IPC: B41F31/02
Filed: 1991-04-25
Abstract: ABSTRACT OF THE DISCLOSURE     The invention refers to an inking system with an impress-ion cylinder and an inking roller. For the solution of the prob-lem to further develop an inking system of that kind such that the printing quality is improved, the inking roller has a smooth sleeve surface, preferably made of rubber or synthetic material. During ink application, the inking roller is adjustable to the impression cylinder during ink application without forming a gap and preferably under pressure. The circumferential speed of the inking roller is variable with respect to the one of the impress-ion cylinder.
Patent CA-2041978-A1 (CA)
Title: Extruder die
Inventor: KIM HEUNG-TAI
IPC: B29C48/05
Filed: 1991-05-06
Abstract: ABSTRACT OF THE DISCLOSURE A die plate for the continuous extrusion of molten thermoplastic resin, which plate has an upstream face and a downstream face that is substantially coplanar.  Such die plate has an outer peripherial rim portion, a solid central portion or cone with a tapered upstream end tip and an annular perforated interconnecting portion with radial ribs to reinforce the full radial dimension.            P9040.jj
Patent CA-2044631-A1 (CA)
Title: Screw cap for originality protection for, in particular, wide-necked containers
Inventor: BURMANN BERNHARD
IPC: B65D55/02
Filed: 1990-10-31
Abstract: ABSTRACT          A screw cap with tamperproof element; in particular for wide-necked containers, comprises a closure cap which can be screwed onto the neck of the container.  The tamperproof element consists of a visible or palpable tamperproof feature on the screw cap, which is irreversibly formed by deformation of a part of the closure cap when the closure is turned in order to open the container or by locking of parts of the closure cap.
Patent CA-2045067-A1 (CA)
Inventor: GARRETT DAVID WILLIAM
IPC: C08J5/08
Filed: 1991-06-20
Abstract: GLASS SIZE COMPOSITIONS AND GLASS    FIBERS COATED THEREWITH                    ABSTRACT OF THE DISCLOSURE     An aqueous glass size composition comprising a water dispersible phenoxy resin modified with an acid, cyanurate or isocyanurate, and an organosilane coupling agent is disclosed. The glass fibers coated with the aqueous size composition are useful for incorporation into molding compositions for stength improvement.
Patent CA-2045298-A1 (CA)
Title: Embossed cover for ring binder mechanism
Inventor: D AMORE MICHAEL J
IPC: B42F13/40
Filed: 1991-06-25
Abstract: ABSTRACT A punched sheet ring binder with configured ring halves, an arcuate mechanism cover with spaced apart platform surfaces to support the sheet border edges during operation of the binder.
Patent CA-2046585-A1 (CA)
Title: Method for forming plastic optical quality spectacle lenses
Inventor: BLUM RONALD D
IPC: B29D11/00
Filed: 1990-04-20
Abstract: Plastic multifocal or progressive lenses are formed from preformed lenses (11) with predetermined lens corrections at the optical centers. A preformed lens is placed against a mold (13) such that the surfaces of the preformed lens and the mold form a cavity (14). A resin composition fills the cavity and is curved to form an optical segment (12). The cavity (14) is shaped to correspond to a desired change in curvature such that the correction at the optical center is the same as the predetermined lens correction at the optical center of the preformed lens (11). The preformed lens (11) may be cast with a thin non-prescription carrier layer (16) for the multifocal or progressive region of the finished lens.  The methods allow casting of lenses without the use of conventional gaskets.
Patent CA-2048135-A1 (CA)
Title: Meat and/or vegetable slicer for shish-kebabs
Inventor: EMSENS MICHEL
IPC: A22C17/00
Filed: 1991-07-30
Abstract: This device is noteworthy in that it comprises an assembly (E) equipped with several blades (1) which are disposed in correspondence and in alignment with slits (B1) belonging to a vessel (B) receiving the stack of meat and/ or vegetable slices, the said assembly (E) being mounted so as to be able to move translationally in the direction of the vessel, and in that the assembly (E) is brought under the control of actuating means which can successively subject the blades (1) to a penetration movement into the vessel, to an angular pivoting movement over a limited arc of a circle corresponding to the overall height of the vessel (B) and to a retracting movement, in order to slice, by the combination of these movements, all the various meat and/or vegetable layers. 
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Patent CA-2049969-A1 (CA)
Title: Paging receiver with continuously tunable antenna and rf amplifier
Inventor: ANDROS ANDREW A
IPC: H04B1/26
Filed: 1990-03-26
Abstract: An RF paging receiver which is tunable to channels to receive pages with the pages being transmitted in a plurality of licensed frequency bands with each band containing a plurality of FM  channels in which signal strength of pages on received channels in the bands varies as a result of variable antenna gain in accordance with the invention includes a tunable antenna (12, 14) having a reception bandwidth spanning the frequency bands with the antenna being tunable in response to an antenna tuning signal to achieve maximum antenna gain for a received channel in any one of the plurality of licensed frequency bands; an RF tuner (16), coupled to the tunable antenna, for receiving individual channels from the bands in response to varying a receiver tuning signal specifying reception of one of the channels within the plurality of frequency bands, the RF tuner comprising a plurality of RF amplifiers (102, 104, and 106) with each RF amplifier.
Patent CA-2050320-A1 (CA)
Title: Medical statistical analyzing method
Inventor: ZIMMERMAN STEVE
IPC: G06F17/00
Filed: 1991-01-11
Abstract: A method for deriving statistical information and control charts in a patient. The process comprising steps of: (1) selecting data from a monitoring device, (2) forming data into records, (3) selecting a portion of each record, (4) determining the average-average, and the standard deviation, (5) repeating steps (1)-(4) after a delay, (6) setting control limits, (7) set-up control charts on a moving screen, (8) determining average-average and standard deviation, (9) graphing and displaying sigma, x-bar and range against the control charts, (10) charting statistically significant deviations, (11) re-adjusting the x-double bar and sigma and/or the R chart sigma bar and control limits, (12) repeating steps (5)-(12), (13) sending data from control chart to a database, (14) comparing isolated portions to database segments, (15) matching categorized portions to treatments and diagnosis, (16) grouping sets of diagnosis/treatments, (19) displaying on the screen options of diagnosis/treatment.
Patent CA-2050611-A1 (CA)
Inventor: COONS ANDREW M III
IPC: D02J1/22
Filed: 1991-09-04
Abstract: Disclosed  is  an  apparatus  for  equilibrating component tensions  in a multicomponent filamentary yarn which is advancing in a primary direction.  The apparatus includes a series of yarn guides arranged so that the multicomponent filamentary yarn deviates both horizontally and vertically from the primary direction.  This deviation advantageously prevents predominance of one component in an air entangled yarn made from two or more different colored or different dye affinity bulked continuous filament feed yarns without unsuitably increasing the overall tension. The  apparatus  exploits  the  surprising  discovery that components themselves, with appropriate manipulations, can be used cooperatively to equalize tensions.  One aspect of this  discovery  guides  the  components  to  run  nearly immediately on top of each other so that they travel in unison.
Patent CA-2051698-A1 (CA)
Title: Recovery of gold and silver from complex refractory sulphide ores by cyanidisation and oxidation with peroxides
Inventor: SMITH TREVOR J
IPC: C22B11/08
Filed: 1990-04-27
Abstract: The recovery of noble metals by sodium cyanide leaching from complex refractory gold and silver bearing ores containing such complex silver sulphides as polybasite, pearcite, pyrargyrite, tetrahedrite and argentite presents difficulties in that the precious metal is trapped inside the refractory matrix of the mineral. Pretreatments such as roasting, acid pressure leaching and biological leaching are capital intensive and to obviate this disadvantage, the use of an alkali/alkaline earth metal peroxide is applied as an additive, in an amount ranging from 0.1 to 5.0 kg/t. Preference is for calcium peroxide, which is more stable, consumes less cyanide, is simple to use and monitor, and enhances the process and recovery by improvement in leach kinetics.
Patent CA-2053032-A1 (CA)
Title: Lawn edger
Inventor: WESSEL LLOYD E
IPC: A01D34/84
Filed: 1991-10-08
Abstract: ABSTRACT            An improved lawn edger includes an edging disk (20) mounted for straight line adjustment, on the wheel axle (16) of a lawn mower (10), between stowed and operative positions.  One-handed operating moves the edger be-tween these positions and, additionally, totally re-moves the edger for close-in mowing.  The operation handle (38)  extends above the mower deck (11) for ease of operation, while the apparatus minimizes undue tortional forces on the wheel axle (16).
Patent CA-2054792-A1 (CA)
Title: Optical/electrical transceiver
Inventor: BIBLE CHRISTOPHER T
IPC: A61B5/04
Filed: 1991-11-01
Abstract: ABSTRACT OF THE INVENTION       An apparatus  for relaying physiological data from a patient along a communications path to an electronic data processing  system  includes  an  optical  interrupter  which electrically isolates the patient from the data processing system.   Specifically, the  interrupter includes a monitor that receives physiological data from the patient in the form of electrical signals, and converts this electrical signal into an optical signal.   The interrupter also includes a transmitter which receives the optical signal sent from the monitor,  reconverts  it to an electrical  signal and then transmits the reconstituted electrical signal to the data system.     The data processing system includes a central processing unit which is electrically connectable via a telephone line to at  least  one  of  a  plurality  of  the  transmitters.          Additionally,  the central processing unit is electrically connectable via  a  telephone  line to  at  least one  of  a plurality of receiving stations.     Through these various connections, a communications path is established for sending the physiological data from a particular patient to a selected receiving station in the data processing system.  Specifically, the data is transmitted as an electrical signal to the monitor where the electrical signal is interrupted and converted into an optical signal.     The transmitter receives this optical signal and converts it back to an electrical signal for further transmission, via a telephone line, from the transmitter and through the central processing unit to a receiving station.
Patent CA-2055652-A1 (CA)
Title: Electroactive compounds, compositions and devices and methods of making the same
Inventor: GOETZ FREDERICK J
IPC: C07D215/14
Filed: 1991-11-15
Abstract: Abstract of the Disclosure The present invention relates to electroactive compounds capable of undergoing a change in light absorption and refraction due to an applied electric field and a permanent change in refraction due to exposure to predetermined bands of optical radiation.  The present invention also relates to electroactive compositions containing such electroactive compounds, electrooptical components comprised of such electroactive compositions and electrooptical devices comprised of such electrooptical components, as well as novel processes of making the same.
Patent CA-2056110-A1 (CA)
Inventor: KLAYMAN ARNOLD I
IPC: G10L21/02
Filed: 1991-11-25
Abstract: Intelligibility  of  a  human voice  projected  by  a loudspeaker in an environment of high ambient noise is enhanced by amplifying formants (26, 28, 30) of the voice. Because intelligibility of the human voice is derived largely from the pattern of frequency distribution of voice formants, selective enhancement of the formants provides much more readily understandable speech in the presence of high  background  noise  with  but  minimal  increase  in amplitude  of  the  speech. Formants  are  processed  by individually selecting them in a spectrum analyzer (42, 124)  and individually amplifying  (50,  58,  74,  80,  140 through 146) and selectively weighting (56, 57, 78, 82) them before recombining processed formants and unprocessed base band voice components  (130)  to provide an output signal (116) of greatly improved intelligibility.